iv CONTENTS. 



PACK 



XX. Letter from Mr Stevenson Macadam to Profes- 

 sor Jameson, on M. Chatin's Observations on 

 the General Distribution of Iodine . . 169 



XXI. Upon Animal Individuality. By Thomas H. 



Huxley, F.R.S., R.N., ... 172 



XXII. Scientific Intelligence : — 



1. A Letter to Sir John W. Lubbock, Bart., 

 F.R.S., " On the Stability of the Earth's Axis of 

 Rotation." By Henry Hennessy, Esq., M.R.I. A., 

 &c. (Communicated by Sir John Lubbock). 

 2. Influence of Oil on Water. 3. The Salt 

 Lake of Utah. 4. Mud Volcano near the Salt 

 Lake Utah. 5. Mount Ararat. 6. Mr Peter- 

 mann and the Franklin Expedition. 7. Pheno- 

 mena of Vision. 8. Vision under Water, 

 9. Colours most frequently hit during 

 Battle, 177-183 



XXIII. List of Patents granted for Scotland from 24 h 



March to 18th June 1852, . . . 184 



